package com.cwz.redis.service;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.BoundSetOperations;
import org.springframework.data.redis.core.HashOperations;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.stereotype.Component;

import java.util.*;
import java.util.concurrent.TimeUnit;

/**
 * @program: w-demo
 * @description: spring redis 工具类
 * @author: Wen
 **/
@SuppressWarnings(value = { "unchecked", "rawtypes" })
@Component
public class RedisService {
	@Autowired
	public RedisTemplate redisTemplate;

	/**
	 * @Description: 缓存基本的对象，Integer、String、实体类等
	 * @Author: Wen
	 * @param key: 		缓存的键值
	 * @param value:	缓存的值
	 * @return: void
	 **/
	public <T> void setCacheObject(final String key, final T value) {
		redisTemplate.opsForValue().set(key, value);
	}

	/**
	 * @Description: 缓存基本的对象，Integer、String、实体类等
	 * @Author: Wen
	 * @param key:		缓存的键值
	 * @param value:	缓存的值
	 * @param timeout:	时间
	 * @param timeUnit:	时间颗粒度
	 * @return: void
	 **/
	public <T> void setCacheObject(final String key, final T value, final Long timeout, final TimeUnit timeUnit) {
		redisTemplate.opsForValue().set(key, value, timeout, timeUnit);
	}

	/**
	 * @Description: 设置有效时间
	 * @Author: Wen
	 * @param key: 		Redis键
	 * @param timeout: 	超时时间
	 * @param unit:  	时间单位
	 * @return: boolean（true=设置成功；false=设置失败）
	 **/
	public boolean expire(final String key, final long timeout, final TimeUnit unit) {
		return redisTemplate.expire(key, timeout, unit);
	}

	/**
	 * @Description: 设置有效时间
	 * @Author: Wen
	 * @param key: 		Redis键
	 * @param timeout:  超时时间
	 * @return: boolean（true=设置成功；false=设置失败）
	 **/
	public boolean expire(final String key, final long timeout) {
		return expire(key, timeout, TimeUnit.SECONDS);
	}

	/**
	 * @Description: 获取有效时间
	 * @Author: Wen
	 * @param key:  	Redis键
	 * @return: long（有效时间）
	 **/
	public long getExpire(final String key) {
		return redisTemplate.getExpire(key);
	}

	/**
	 * @Description: 判断 key 是否存在
	 * @Author: Wen
	 * @param key:  Redis键
	 * @return: java.lang.Boolean（true 存在 false不存在）
	 **/
	public Boolean hasKey(String key) {
		return redisTemplate.hasKey(key);
	}

	/**
	 * @Description: 获得缓存的基本对象
	 * @Author: Wen
	 * @param key:	Redis键
	 * @return: T
	 **/
	public <T> T getCacheObject(final String key) {
		ValueOperations<String, T> operation = redisTemplate.opsForValue();
		return operation.get(key);
	}

	/**
	 * @Description: 删除单个对象
	 * @Author: Wen
	 * @param key:	Redis键
	 * @return: boolean
	 **/
	public boolean deleteObject(final String key) {
		return redisTemplate.delete(key);
	}

	/**
	 * @Description: 删除集合对象
	 * @Author: Wen
	 * @param collection:
	 * @return: boolean
	 **/
	public boolean deleteObject(final Collection collection) {
		return redisTemplate.delete(collection) > 0;
	}

	/**
	 * @Description: 缓存List数据
	 * @Author: Wen
	 * @param key: 		Redis键
	 * @param dataList: 待缓存的List数据
	 * @return: long
	 **/
	public <T> long setCacheList(final String key, final List<T> dataList) {
		Long count = redisTemplate.opsForList().rightPushAll(key, dataList);
		return count == null ? 0 : count;
	}

	/**
	 * @Description: 获得缓存的list对象
	 * @Author: Wen
	 * @param key:  	Redis键
	 * @return: java.util.List<T>
	 **/
	public <T> List<T> getCacheList(final String key) {
		return redisTemplate.opsForList().range(key, 0, -1);
	}

	/**
	 * @Description: 缓存Set
	 * @Author: Wen
	 * @param key: 		Redis键
	 * @param dataSet:  缓存的数据
	 * @return: org.springframework.data.redis.core.BoundSetOperations<java.lang.String,T>
	 **/
	public <T> BoundSetOperations<String, T> setCacheSet(final String key, final Set<T> dataSet) {
		BoundSetOperations<String, T> setOperation = redisTemplate.boundSetOps(key);
		Iterator<T> it = dataSet.iterator();
		while (it.hasNext()) {
			setOperation.add(it.next());
		}
		return setOperation;
	}

	/**
	 * @Description: 获得缓存的set
	 * @Author: Wen
	 * @param key:  	Redis键
	 * @return: java.util.Set<T>
	 **/
	public <T> Set<T> getCacheSet(final String key) {
		return redisTemplate.opsForSet().members(key);
	}

	/**
	 * @Description: 缓存Map
	 * @Author: Wen
	 * @param key:		Redis键
	 * @param dataMap:
	 * @return: void
	 **/
	public <T> void setCacheMap(final String key, final Map<String, T> dataMap) {
		if (dataMap != null) {
			redisTemplate.opsForHash().putAll(key, dataMap);
		}
	}

	/**
	 * @Description: 获得缓存的Map
	 * @Author: Wen
	 * @param key:  	Redis键
	 * @return: java.util.Map<java.lang.String,T>
	 **/
	public <T> Map<String, T> getCacheMap(final String key) {
		return redisTemplate.opsForHash().entries(key);
	}

	/**
	 * @Description: 往Hash中存入数据
	 * @Author: Wen
	 * @param key: 		Redis键
	 * @param hKey: 	Hash键值
	 * @param value:  	Hash数据
	 * @return: void
	 **/
	public <T> void setCacheMapValue(final String key, final String hKey, final T value) {
		redisTemplate.opsForHash().put(key, hKey, value);
	}

	/**
	 * @Description: 获取Hash中的数据
	 * @Author: Wen
	 * @param key: 		Redis键
	 * @param hKey: 	Hash键值
	 * @return: T
	 **/
	public <T> T getCacheMapValue(final String key, final String hKey) {
		HashOperations<String, String, T> opsForHash = redisTemplate.opsForHash();
		return opsForHash.get(key, hKey);
	}

	/**
	 * @Description: 获取多个Hash中的数据
	 * @Author: Wen
	 * @param key: 		Redis键
	 * @param hKeys:  	Hash键集合
	 * @return: java.util.List<T>（Hash对象集合）
	 **/
	public <T> List<T> getMultiCacheMapValue(final String key, final Collection<Object> hKeys) {
		return redisTemplate.opsForHash().multiGet(key, hKeys);
	}

	/**
	 * @Description: 删除Hash中的某条数据
	 * @Author: Wen
	 * @param key: 		Redis键
	 * @param hKey: 	Hash键值
	 * @return: boolean
	 **/
	public boolean deleteCacheMapValue(final String key, final String hKey) {
		return redisTemplate.opsForHash().delete(key, hKey) > 0;
	}

	/**
	 * @Description: 获得缓存的基本对象列表
	 * @Author: Wen
	 * @param pattern:  	字符串前缀
	 * @return: java.util.Collection<java.lang.String>（对象列表）
	 **/
	public Collection<String> keys(final String pattern) {
		return redisTemplate.keys(pattern);
	}


}
